Back to results
US 4,700,321 AGranted
Timing signal generator
AssigneeProconics International, Inc.
InventorStephen A. Ward
Life of this patent
Estimating the term…
Abstract
Circuitry for providing timing signals spaced in time by a varying amount, the circuitry including calculating means for repetitively performing a calculation to repetitively provide calculation signals the value (SUM) of which varies as a function of the number of times the calculation has been repeated, and timing signal generating means for receiving the calculation signals and providing a series of timing signals spaced in time by varying amounts, a timing signal being generated each time the value (SUM) has changed by a set amount (ACC).
Claims13
Apparatus comprising
- a stepper motor that rotates a given angle in response to each timing signal it receives,
- calculating means for repetitively performing a calculation to provide calculation signals having values (SUM) which vary as a quadratic function of the number of times said calculation has been repeated, and
- timing signal generating means for receiving said calculation signals and providing a series of timing signals spaced in time by varying amounts to said stepper motor, one said timing signal being generated each time said value (SUM) has changed by a set amount (ACC), whereby said timing signals cause said stepper motor to be accelerated.
Dependencies are inferred from the claim text.